Cool blue pilot lightAC power switchStandby switchVintage/modern switchMasterUSA/AC/Brit switchTone controlsTweaker tone control circuitsUSA/AC/Brit switch tone controlsClean/hotGainMasterBright/normal setting switchDeep/tightInput jackEffects loopImpedance switchMain speaker outputExtension speaker connection250ma fast-blow fuseAC voltage selectorAC inlet and fuse